A Reuters poll of 1007 randomly selected adults show that 93% of them know twitter. Find the margin of Error, E, with 90% CL E = ( Z_(a/2)) (Sqrt (pq/n))

Topford supplies X-Data DVDs in lots of 60, and they have a reported defect rate of 0.8% so the probability of a disk being defective is .008. What is the probability of getting at least one defective disk in a lot of 60? P (At least 1 defective disk in 60) =

The probability that events A or B will occur, P(A or B), is given by P(A or B) = P(A) + P(B) P(A and B). If events A and B are mutually exclusive, then the rule can be simplified to ___________. It is because __________

P (At most two children having the same gender)=

Continuity correction represents _______ whole number x by the interval ______

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the probability the first three consecutive adults know twitter.

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the probability Exactly 3 adults know twitter. Note: 5C3 means 5 combination 3 where order is not important

Your friend continues to insist that numbers don’t lie. He points out that the y axis is going up by .5 degree intervals so the data has to be true. What would you say?

When three children are born: Assuming that boys and girls are equally likely, find the probability of getting three children of all the same gender P (Three children having the same gender) =  

State the hypotheses. A laptop manufacturer claims that the mean life of battery for a certain model of laptop is more than 12 hours.